Improvement in curriers  knives



' T. HANSEN & G. H. WEIPI'ENBAGH.

Ourriers Knife.

No. 208,593. Patented Oct. I, I878.

WITNESSES: INVEIITOR: w 6 M W j BY a f da - ATTORNEYS- w N.PErER:.PNQTO-LITHDGRAPHER, WASHINGTON. D c.

TTNITED STATES PATENT QFFIGE.

THORER HANSEN AND GEORGE H. WEIFFENBAOH, OF RAGIN E, WISOON SIN.

IMPROVEMENT IN CURRIERS KNIVES.

Specification forming part of Letters Patent No. 208,593, dated October1, 1878; application filed July 24, 1878.

To all whom it may concern:

Be it known that we, THORER HANSEN and GEORGE HENRY WEIFFENBACH, ofRacine, in the county of Racine and State of Wisconsin, have invented anew and useful Improvement in Curriers Shaving-Knives, of which thefollowing is a specification The invention will first be described inconnection with the drawing, and then pointed out in the claim.

In the accompanying drawing, Figure 1 represents a side view of aknifeembodying our improvements. Fig. 2 is an edge view with the handles insection, taken in the line as mot Fig. 1. Fig. 3 is a transverse sectiontaken in the line y y of Fig. 1.

Similar letters of reference indicate corresponding parts.

The reversible knife-blades A A consist of two strips of steel, each ofa length about equal to the length of the blade of the knife in commonuse, and of a width about double the width of the common blade. Each ofthe blades A is double-edged, so that when one edge becomes dull theother edge may be substituted by reversing the blade. These double-edgedblades A A are clamped by a holder consisting of two bars, B B, theinner sides of which are flat, and the outer sides are beveled towardthe edges, so that when in place with the knives between them theinstrument somewhat resembles in general appearance the knife in commonuse, being provided with a transverse handle, 0, and a longitudinalhandle, D. p The ends of the bars B are formed into shanks, and aresecured to the handles 0 and D by means of nuts 0 and cl, countersunk inthe handles and engaging with screw-threads on said shanks. At the endswhere the holder is attached to the handle 0 both of the shanks arescrew-threaded, each shank being halfround and the flat surfaces placedtogether. At'the opposite end only one of the shanks is represented asthreaded and engaging with the nut d, and the other shank terminatesjust after entering the handle.

In both handles the sockets for the reception of the shanks are taperingto correspond with the form of the shanks, so that as the nuts arescrewed farther into the handles the knives are more firmly clampedbetween the bars.

The socket in the handle D may be provided with a metallic lining, e,for the. purpose of adding to its strength.

The manner of applying the instrument is shown in dotted lines in Fig.2.

Among the advantages resulting from the construction above described, itmay be stated that the reversibility of the blades saves time insharpening, as both edges may be worn dull before it becomes necessaryto sharpen the knife.

As the blades are removable, they are the only portions requiring to bemade of steel. There are no screws to wear out or corrode, and the knifeis easily cleansed and kept in order, and will always remain true.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent A curriers knife whose jaws A B are held at oneend in a transverse handle, 0, by screw and nut, and in the longitudinalhandle one jaw is held by a screw and nut, while the other is madeshorter, beveled at the end to fit in a tapering recess, the said jawsbeing thus adapted to hold a double-edged blade without set-screwsbet-ween the handles, as shown and described.

THORER HANSEN. GEORGE HENRY \VEIFFENBACH.

Witnesses:

JOHN D. KELLY, O. O. J ANSAN.

